/*
 * Copyright (C) 2005 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#ifndef ANDROID_PROCESS_STATE_H
#define ANDROID_PROCESS_STATE_H

#include "IBinder.h"
#include "../utils/KeyedVector.h"
#include "../utils/String8.h"
#include "../utils/String16.h"

#include "../utils/threads.h"
#include "../utils/Mutex.h"

// ---------------------------------------------------------------------------
namespace android {

// Global variables
    extern int mArgC;
    extern const char *const *mArgV;
    extern int mArgLen;

    class IPCThreadState;

    class ProcessState : public virtual RefBase {
    public:
        static sp <ProcessState> self();

        void setContextObject(const sp <IBinder> &object);

        sp <IBinder> getContextObject(const sp <IBinder> &caller);

        void setContextObject(const sp <IBinder> &object,
                              const String16 &name);

        sp <IBinder> getContextObject(const String16 &name,
                                      const sp <IBinder> &caller);

        void startThreadPool();

        typedef bool (*context_check_func)(const String16 &name,
                                           const sp <IBinder> &caller,
                                           void *userData);

        bool isContextManager(void) const;

        bool becomeContextManager(
                context_check_func checkFunc,
                void *userData);

        sp <IBinder> getStrongProxyForHandle(int32_t handle);

        wp <IBinder> getWeakProxyForHandle(int32_t handle);

        void expungeHandle(int32_t handle, IBinder *binder);

        void setArgs(int argc, const char *const argv[]);

        int getArgC() const;

        const char *const *getArgV() const;

        void setArgV0(const char *txt);

        void spawnPooledThread(bool isMain);

        status_t setThreadPoolMaxThreadCount(size_t maxThreads);

        void giveThreadPoolName();

    private:
        friend class IPCThreadState;

        ProcessState();

        ~ProcessState();

        ProcessState(const ProcessState &o);

        ProcessState &operator=(const ProcessState &o);

        String8 makeBinderThreadName();

        struct handle_entry {
            IBinder *binder;
            RefBase::weakref_type *refs;
        };

        handle_entry *lookupHandleLocked(int32_t handle);

        int mDriverFD;
        void *mVMStart;

        mutable Mutex mLock;  // protects everything below.

        Vector <handle_entry> mHandleToObject;

        bool mManagesContexts;
        context_check_func mBinderContextCheckFunc;
        void *mBinderContextUserData;

        KeyedVector<String16, sp < IBinder> >
        mContexts;


        String8 mRootDir;
        bool mThreadPoolStarted;
        volatile int32_t mThreadPoolSeq;
    };

}; // namespace android

// ---------------------------------------------------------------------------

#endif // ANDROID_PROCESS_STATE_H
